Dropbox upload broken with latest snapshot plugin

Not sure what's going on here but here is an excerpt from the logs. The snapshot seems to have run jsut fine but is stuck at the Dropbox upload:

2013-04-25 11:19:47: Sending file chunked. Offset: 100663296/125062034 (80%)
2013-04-25 11:19:57: Sending file chunked. Offset: 104857600/125062034 (83%)
2013-04-25 11:20:07: Sending file chunked. Offset: 109051904/125062034 (87%)
2013-04-25 11:20:17: Sending file chunked. Offset: 113246208/125062034 (90%)
2013-04-25 11:20:27: Sending file chunked. Offset: 117440512/125062034 (93%)
2013-04-25 11:20:36: Sending file chunked. Offset: 121634816/125062034 (97%)
2013-04-25 11:20:45: Sending file chunked commit url path: sandbox//snapshot-1366880874-130425-090754-3b4dad42.zip?upload_id=4gO9DA04HmLyvMAz15oxCQ
2013-04-25 11:20:45: Sending file chunked commit url: https://api-content.dropbox.com/1/commit_chunked_upload/sandbox//snapshot-1366880874-130425-090754-3b4dad42.zip?upload_id=4gO9DA04HmLyvMAz15oxCQ
2013-04-25 11:20:47: Sending to Dropbox Directory:/
2013-04-25 11:20:47: ERROR: Forbidden. This could mean a bad OAuth request, or a file or folder already existing at the target location.
2013-04-25 11:22:17: Sending Archive: snapshot-1366880874-130425-090754-3b4dad42.zip 119.27M
2013-04-25 11:22:17: Destination: dropbox: DropBox
2013-04-25 11:22:17: Sending file chunked. Offset: 0/125062034 (0%)
2013-04-25 11:22:27: Sending file chunked. Offset: 4194304/125062034 (3%)
2013-04-25 11:22:37: Sending file chunked. Offset: 8388608/125062034 (6%)
2013-04-25 11:22:47: Sending file chunked. Offset: 12582912/125062034 (10%)

This thing is stuck in a loop. The upload stops at 97% and then starts again from scratch :slight_frown:
forever!

I've just tried the resend button but cannot see any changes